An explosion happened at the office at the Jackson County district attorney’s office in Medford, Oregon at around 4:30 a.m., reports KPTV. Cops and firefighters in the southern Oregon town responded to the scene at around 4:38 a.m.

There are no reports of injuries. The explosion happened before regular office hours. The Mail Tribune reports that the device did not fully detonate but rather caught “fire and emitted a large flame until it eventually burned out,” according to Lt. Budreau. He added that because it didn’t fully explode, the remnants of the device will be useful to the investigation.

2. The Multi-Agency Investigation is Underway

The FBI and ATF are on scene investigating. The device has been described as “improvised,” by KOBI TV. Oregon State Police are also on scene.

KGTV reports that the exploding device was the only one in the building.

#BREAKING: Police: An ATF National Response Team from Arlington, Virginia is responding to today's expolosion at the Jackson Co. DA's Office

A large perimeter was set up around the building, as police were concerned about other bombs that could be in the area. After a search, the perimeter was reduced.

3. Cops May Have a Suspect

A suspect is reported to be “on the loose.” The Mail Tribune reports that an officer identified a suspicious person, a male wearing dark clothes, close to where the explosion happened. He managed to escape from cops who were chasing him. This person was last seen at South Columbus Avenue in Medford, a little over a mile from the DA’s office:

4. The Building’s Exterior Took the Most Damage

There are reports of “extensive” damage to the building, including shattered windows. Lt Budreau said:

There was some glass breakage and there was some interior damage. But most of the damage appears to be on the exterior, which is good.

5. The Town of Medford Has Seen a Surge in Crime in the Last 10 Years

The Mail Tribune has reported extensively over the past five years about the surge in drug crime and gang activity in the town. In 2009, 45 percent jump from 2008 in drug arrests was reported, with heroin being the most commonly confiscated drug. At the time it was said that heroin had filled a void left when police in the town cracked down on meth production.